Akademik Veri Yönetim Sistemi
9th Congress of the Balkan Geophysical Society, BGS 2017, Belek, Antalya, Türkiye, 5 - 09 Kasım 2017, cilt.2017-November
© 2017 European Association of Geoscientists and Engineers EAGE. All rights reserved.Geometrical spreading factor and anelastic attenuation coefficient have been defined for an area of Turkey bounded by coordinates 31? E-35? E and 38.5? N-41? N. By this way, a new reliable relation estimating typical local magnitudes for earthquakes within this area has been defined.The data used are coming from a local temporary network consisted of six broad-band stations which operated for the period 2007-2010.The records of the network have been converted to synthetic Wood-Anderson seismograms and maximum amplitudes of the two horizontal components have been used.The result showed that the seismic wave attenuation is, basically, due to geometrical spreading (n = 1.455) while anelastic attenuation is rather negligible (K = 1.178×10-5).The new local magnitude scale defined here is valid for the study area and holds for hypocentral distances from 8 km up to 200 km, while it can be also used-with caution-for hypocentral distances up to 250 km.The performed evaluation procedure proved the reliability and robustness of the final relation.